From: Chanho Min <chanho....@lge.com> Date: Wed, 22 Jun 2016 19:08:13 +0900
> To fix this, I suggested patch that checks if device is available > before the DHCP packet is sended. The bug is more fundamental than this. The code is not taking a reference to the netdevice, and that's the only reason it is able to disappear like this. It is illegal to reference a netdevice after dropping the rtnl mutex unless you take a proper reference to it.
